Easily compress PNG images online for free while preserving image quality and transparency.
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The best tool to quickly compress PNG files by applying lossy compressions while preserving transparency. Save up to 70 to 80% size!
Our PNG compressor does not sacrifice quality for anything. We generate the best quality compressed PNGs while preserving transparency. At default settings, this tool is one of the fastest ways to compress PNG files on the web.
Our default settings can compress most PNG files better than any other online tool. If you would like to compress PNG files even further, we provide the following settings via the "Advanced Settings" (optional):
Yes, this tool is 100% free. It works on any web browser. There are no registrations or software to install.
We delete all PNG files within 6 hours of compressing them. Plus, all uploads are done over a secure HTTPs connection.
Yes, compressed PNGs from this tool preserve full alpha transparency. Plus, the compressed PNGs are compatible with any browser and operating system, even Internet Explorer 6.
Our PNG compressor converts 32-bit truecolor PNGs with alpha channel to palette PNG (8-bit indexed color image). This stripping of colors by combining similar colors, while lossy, is often not noticeable to the human eye . Plus, we also strip image metadata, to further reduce PNG file size.
A web page with optimized PNGs load faster, and your visitors will thank you for it! It can also lower your bandwidth cost.
We can compress large PNGs up to 1GB in size!